Locking assembly

Abstract

An exemplary locking assembly includes a locking member and a sleeve. The locking member includes a locking portion, a neck portion, and a head portion. One end of the neck portion is connected to the head portion, and another end of the neck portion is connected to the locking portion. An outer diameter of the locking portion is larger than that of the neck portion. An outer diameter of the locking portion is larger than that of the neck portion. The sleeve defines a through hole therein for holding and guiding the locking member. The through hole includes a first part. The sleeve further includes a restricting portion extending out from an inner surface of the through hole adjoining the first part of the through hole. After locking portion of the locking member passes through the restricting portion of the sleeve, the restricting portion blocks the locking portion from sliding out of the sleeve.

What is claimed is: 
     
       1. A locking assembly, for locking a first workpiece and a second workpiece, comprising:
 a locking member comprising a neck portion having a first end and a second end, a head portion connected to the first end of the neck portion, and a locking portion connected to the second end of the neck portion for locking with the first workpiece, wherein an outer diameter of the locking portion is larger than that of the neck portion; and 
 a sleeve defining a through hole therein for holding and guiding the locking member, the through hole comprising a first part, a second part, and a third part communicating with the first part and the second part in that order, wherein the sleeve comprises a restricting portion extending out from an inner surface of the through hole between the second part and the third part, the locking portion is threaded and the restricting portion defines an inner screw threading thereon corresponding to the threading of the locking portion, such that when the locking portion of the locking member screwedly passes through the restricting portion of the sleeve, and finally the inner screw threading of the restricting portion blocks the locking portion from sliding out of the sleeve along a direction from the locking portion towards the head portion; and the head portion is received in the first part of the through hole, the sleeve defines a latching slot in an outer surface of the sleeve adjoining the first part, for latching with the second workpiece. 
 
     
     
       2. The locking assembly as claimed in  claim 1 , wherein an inner diameter of the first part of the through hole is larger than the outer diameter of the head portion. 
     
     
       3. The locking assembly as claimed in  claim 1 , wherein an inner diameter of the second part of the through hole is smaller than the outer diameter of the head portion, the inner diameter of the second part of the through hole is larger than the outer diameter of the neck portion, and the inner diameter of the second part of the through hole is larger than the outer diameter of the locking portion. 
     
     
       4. The locking assembly as claimed in  claim 1 , wherein an inner diameter of the third part of the through hole is smaller than that of the second part, and the inner diameter of the third part of the through hole is larger than or equal to the outer diameter of the locking portion. 
     
     
       5. The locking assembly as claimed in  claim 1 , further comprising a resilient member disposed in the through hole of the sleeve, and is compressed between the head portion of the locking member and the restricting portion of the sleeve. 
     
     
       6. The locking assembly as claimed in  claim 1 , wherein an outer diameter of the resilient member is larger than a minimum diameter of the restricting portion. 
     
     
       7. The locking assembly as claimed in  claim 6 , wherein an inner diameter of the resilient member is larger than the diameters of the locking portion and the neck portion, but smaller than the diameter of the head portion. 
     
     
       8. A locking assembly, for locking a first workpiece and a second workpiece, comprising:
 a locking member comprising a neck portion having a first end and a second end, a head portion connected to the first end of the neck portion, and a locking portion connected to the second end of the neck portion for locking with the first workpiece, wherein an outer diameter of the locking portion is larger than that of the neck portion; 
 a sleeve defining a through hole therein for holding and guiding the locking member, the through hole including a first part, wherein the sleeve comprises a restricting portion extending out from an inner surface of the through hole adjoining the first part of the through hole, the locking portion is threaded and the restricting portion defines an inner screw threading thereon corresponding to the threading of the locking portion, such that when the locking portion of the locking member screwedly passes through the restricting portion of the sleeve, and finally the inner screw threading of the restricting portion blocks the locking portion from sliding out of the sleeve along a direction from the locking portion towards the head portion; the head portion is received in the first part of the through hole, the sleeve defines a latching slot in an outer surface of the sleeve adjoining the first part, for latching with the second workpiece; and 
 a resilient member positioned between the head portion of the locking member and the restricting portion of the sleeve.